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采用在端羟基聚丁二烯（ＨＴＰＢ）２０％（质量比）中加入铝粉２０％（质量比），再加入氧化剂ＡＮ（硝酸铵）／ＡＰ（高氯酸铵）合计６０％（质量比）的推进剂，取得了在ＡＮ中加入ＡＰ时的燃速特性和点火特性。在燃烧压力为１ＭＰａ时，ＡＮ系复合推进剂的燃速为１．２ｍｍ／ｓ，ＡＰ系复合推进剂的燃速为４．０ｍｍ／ｓ。在压力１ＭＰａ、照射能量６００Ｗ的条件下，ＡＮ系复合推进剂的点火滞后时间约为４６０ｍｓ，ＡＰ系复合推进剂的点火滞后时间仅为７．５ｍｓ。ＡＮ系复合推进剂点火滞后时间长的主要原因是化学点火滞后时间长。在ＡＮ系复合推进剂中混入ＡＰ时，燃速同样增加，点火滞后时间随着燃速的增加而减少。
20% (mass ratio) of aluminum powder is added to 20% (mass ratio) of hydroxyl terminated polybutadiene (HTPB), 60% of the total amount of the oxidant AN (ammonium nitrate) / AP ) Propellant to obtain the burning rate and ignition characteristics of the AP when added to the AN. When the combustion pressure is 1MPa, the ignition speed of AN composite propellant is 1.2mm / s, and the burning speed of AP composite propellant is 4.0mm / s. The ignition lag time of AN composite propellant was about 460ms under the pressure of 1MPa and the irradiation energy of 600W. The ignition lag time of AP composite propellant was only 7.5ms. AN composite propellant ignition lag time is the main reason for a long lag time for chemical ignition. Combining AP with AN compound propellant, the burning rate also increased, and the ignition delay time decreased with the increase of burning rate.